Geoscience ›› 2018, Vol. 32 ›› Issue (01): 28-44.DOI: 10.19657/j.geoscience.1000-8527.2018.01.03
• Petrology • Previous Articles Next Articles
HUANG Yonggao(), LUO Gai, ZHANG Tong, XIONG Changli, JIA Xiaochuan, YANG Xuejun
Received:
2017-04-28
Revised:
2017-10-30
Online:
2018-02-10
Published:
2018-02-05
CLC Number:
HUANG Yonggao, LUO Gai, ZHANG Tong, XIONG Changli, JIA Xiaochuan, YANG Xuejun. Characteristics of Chronology and Geochemistry for the Cenozoic Alkali-rich Porphyry in Lijiang Area, Western Yunnan and Their Significance[J]. Geoscience, 2018, 32(01): 28-44.
Fig.1 The distribution diagram of Cenozoic porphyry in the Eastern Tibet-Western Yunnan(a.after HOU et al. [2]) and geological map of the study area(b)
岩体 | 主要 岩性 | 结构 | 斑晶 | 基质 | 主要副矿物 | 显微镜 下照片 | |||
---|---|---|---|---|---|---|---|---|---|
主要矿物 | 含量/% | 主要矿物 | 含量/% | ||||||
小 桥 头 | 二长花 岗斑岩 | 斑状结构 | 斜长石 钾长石 石英 角闪石 | 16~31 5~25 2~10 1~3 | 钾长石 斜长石 石英 角闪石 | 10~27 14~32 12~19 <3 | 磷灰石+锆石+ 榍石+磁铁矿+ 钛铁矿 | ||
石英二 长斑岩 | 斑状结构 | 斜长石 钾长石 石英 角闪石 | 15~32 5~25 1~7 1~4 | 钾长石 斜长石 石英 角闪石 | 15~30 20~30 2~14 <2 | 磷灰石+锆石+榍石+电气石+磁铁矿 | |||
老 君 山 | 辉石正 长岩 | 细粒半自形 粒状结构 | 正长石 | 80~90 | 霓辉石 单斜辉石 钠长石 石英 角闪石 黑云母 | <10 <8 <8 1~3 <5 <1 | 钛铁矿+锆石+磷灰石+榍石 | ||
石英正 长岩 | 中细粒半自 形粒状结构 | 正长石 | 74~85 | 石英 斜长石 角闪石 单斜辉石 黑云母 | 6~15 4~10 1~8 <4 <1 | 磷灰石+榍石+锆石+钛磁铁矿 | |||
喇 叭 山 | 透长粗 面斑岩 | 斑状-聚斑 结构 | 钾长石 透长石 正长石 透辉石 黝方石 | <22 <15 <10 2~8 <1 | 钾长石 钠长石 透辉石 | 50~54 <10 <2 | 磷灰石+锆石+霓石+磁铁矿+钛铁矿 | ||
碱长粗 面斑岩 | 斑状-聚斑 结构 | 透长石 单斜辉石 黝方石 霓辉石 | 20~34 <6 <1 <1 | 钾长石 透长石 单斜辉石 | 54~70 <5 <1 | 磷灰石+锆石+磁铁矿+钛铁矿 | |||
石 支 | 二长花 岗斑岩 | 多斑结构 | 钾长石 斜长石 石英 黑云母 角闪石 | 20~32 17~35 5~20 <1 <1 | 钾长石 斜长石 石英 角闪石 黑云母 | 10~15 10~20 7~18 <1 <1 | 绿帘石+榍石+磷灰石+锆石+钛磁铁矿+磁铁矿+钛铁矿 | ||
温 路 坡 | 正长粗 面斑岩 | 多斑结构 | 正长石 霓辉石 单斜辉石 黑云母 | 15~20 5~20 <8 <1 | 正长石 单斜辉石 黑云母 | 55~60 <5 <1 | 磷灰石+锆石+磁铁矿+钛铁矿 | ||
透长粗 面斑岩 | 聚斑-粗面 结构 | 透长石 单斜辉石 斜长石 黑云母 | 30~35 3~12 3~4 <1 | 透长石 单斜辉石 黑云母 斜长石 | 26~43 5~6 1~2 <4 | 磷灰石+锆石+磁铁矿+钛铁矿 |
Table 1 The main rock type features of the alkali-rich porphyry in the study area
岩体 | 主要 岩性 | 结构 | 斑晶 | 基质 | 主要副矿物 | 显微镜 下照片 | |||
---|---|---|---|---|---|---|---|---|---|
主要矿物 | 含量/% | 主要矿物 | 含量/% | ||||||
小 桥 头 | 二长花 岗斑岩 | 斑状结构 | 斜长石 钾长石 石英 角闪石 | 16~31 5~25 2~10 1~3 | 钾长石 斜长石 石英 角闪石 | 10~27 14~32 12~19 <3 | 磷灰石+锆石+ 榍石+磁铁矿+ 钛铁矿 | ||
石英二 长斑岩 | 斑状结构 | 斜长石 钾长石 石英 角闪石 | 15~32 5~25 1~7 1~4 | 钾长石 斜长石 石英 角闪石 | 15~30 20~30 2~14 <2 | 磷灰石+锆石+榍石+电气石+磁铁矿 | |||
老 君 山 | 辉石正 长岩 | 细粒半自形 粒状结构 | 正长石 | 80~90 | 霓辉石 单斜辉石 钠长石 石英 角闪石 黑云母 | <10 <8 <8 1~3 <5 <1 | 钛铁矿+锆石+磷灰石+榍石 | ||
石英正 长岩 | 中细粒半自 形粒状结构 | 正长石 | 74~85 | 石英 斜长石 角闪石 单斜辉石 黑云母 | 6~15 4~10 1~8 <4 <1 | 磷灰石+榍石+锆石+钛磁铁矿 | |||
喇 叭 山 | 透长粗 面斑岩 | 斑状-聚斑 结构 | 钾长石 透长石 正长石 透辉石 黝方石 | <22 <15 <10 2~8 <1 | 钾长石 钠长石 透辉石 | 50~54 <10 <2 | 磷灰石+锆石+霓石+磁铁矿+钛铁矿 | ||
碱长粗 面斑岩 | 斑状-聚斑 结构 | 透长石 单斜辉石 黝方石 霓辉石 | 20~34 <6 <1 <1 | 钾长石 透长石 单斜辉石 | 54~70 <5 <1 | 磷灰石+锆石+磁铁矿+钛铁矿 | |||
石 支 | 二长花 岗斑岩 | 多斑结构 | 钾长石 斜长石 石英 黑云母 角闪石 | 20~32 17~35 5~20 <1 <1 | 钾长石 斜长石 石英 角闪石 黑云母 | 10~15 10~20 7~18 <1 <1 | 绿帘石+榍石+磷灰石+锆石+钛磁铁矿+磁铁矿+钛铁矿 | ||
温 路 坡 | 正长粗 面斑岩 | 多斑结构 | 正长石 霓辉石 单斜辉石 黑云母 | 15~20 5~20 <8 <1 | 正长石 单斜辉石 黑云母 | 55~60 <5 <1 | 磷灰石+锆石+磁铁矿+钛铁矿 | ||
透长粗 面斑岩 | 聚斑-粗面 结构 | 透长石 单斜辉石 斜长石 黑云母 | 30~35 3~12 3~4 <1 | 透长石 单斜辉石 黑云母 斜长石 | 26~43 5~6 1~2 <4 | 磷灰石+锆石+磁铁矿+钛铁矿 |
分析点 | Th/10-6 | U/10-6 | Th/U | 同位素比值 | 同位素年龄/Ma | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 206Pb/238U | 1σ | ||||
SZ2-1* | 85.1 | 351.1 | 0.25 | 0.157 2 | 0.002 9 | 8.495 9 | 0.189 6 | 0.391 6 | 0.008 3 | 2 130.3 | 38.4 |
SZ2-2 | 79.0 | 849.6 | 0.10 | 0.067 8 | 0.004 1 | 0.054 1 | 0.003 3 | 0.005 8 | 0.000 1 | 37.2 | 0.9 |
SZ2-3 | 133.0 | 879.9 | 0.16 | 0.076 8 | 0.004 2 | 0.059 6 | 0.003 2 | 0.005 6 | 0.000 1 | 36.1 | 0.9 |
SZ2-4 | 56.0 | 419.3 | 0.14 | 0.107 1 | 0.008 2 | 0.086 2 | 0.006 4 | 0.005 8 | 0.000 2 | 37.5 | 1.1 |
SZ2-5* | 138.8 | 702.7 | 0.20 | 0.048 7 | 0.002 1 | 0.244 1 | 0.010 5 | 0.036 3 | 0.000 8 | 229.9 | 5.0 |
SZ2-6 | 95.1 | 547.0 | 0.18 | 0.074 9 | 0.006 1 | 0.061 0 | 0.004 9 | 0.005 9 | 0.000 2 | 38.0 | 1.1 |
SZ2-7* | 126.7 | 425.7 | 0.31 | 0.049 0 | 0.002 5 | 0.242 1 | 0.012 7 | 0.035 8 | 0.000 8 | 226.9 | 5.1 |
SZ2-8 | 143.1 | 979.3 | 0.15 | 0.044 0 | 0.004 2 | 0.033 2 | 0.003 1 | 0.005 5 | 0.000 1 | 35.2 | 0.9 |
SZ2-9 | 13.8 | 630.7 | 0.02 | 0.055 1 | 0.004 4 | 0.042 0 | 0.003 3 | 0.005 5 | 0.000 1 | 35.5 | 0.9 |
SZ2-10 | 78.1 | 665.9 | 0.12 | 0.073 8 | 0.005 9 | 0.054 5 | 0.004 3 | 0.005 4 | 0.000 2 | 34.4 | 0.9 |
SZ2-11 | 59.2 | 739.9 | 0.08 | 0.054 3 | 0.004 2 | 0.041 2 | 0.003 2 | 0.005 5 | 0.000 1 | 35.4 | 0.9 |
SZ2-12 | 75.3 | 951.1 | 0.08 | 0.043 9 | 0.003 4 | 0.034 2 | 0.002 7 | 0.005 7 | 0.000 1 | 36.3 | 0.9 |
SZ2-13 | 262.4 | 635.2 | 0.42 | 0.048 2 | 0.005 0 | 0.036 5 | 0.003 8 | 0.005 5 | 0.000 1 | 35.3 | 0.9 |
SZ2-14 | 204.1 | 1 041.1 | 0.20 | 0.047 0 | 0.004 7 | 0.035 3 | 0.003 5 | 0.005 5 | 0.000 1 | 35.1 | 0.9 |
SZ2-15* | 92.8 | 602.9 | 0.16 | 0.070 2 | 0.006 8 | 0.052 0 | 0.004 9 | 0.005 4 | 0.000 2 | 34.5 | 1.0 |
SZ2-16* | 95.7 | 766.7 | 0.13 | 0.055 4 | 0.006 6 | 0.043 7 | 0.005 1 | 0.005 7 | 0.000 2 | 36.8 | 1.1 |
SZ2-17* | 78.5 | 680.8 | 0.12 | 0.056 0 | 0.004 7 | 0.042 9 | 0.003 6 | 0.005 6 | 0.000 1 | 35.8 | 0.9 |
SZ2-18* | 142.1 | 482.9 | 0.30 | 0.086 1 | 0.008 1 | 0.067 8 | 0.006 2 | 0.005 7 | 0.000 2 | 36.8 | 1.2 |
SZ2-19 | 45.0 | 656.6 | 0.07 | 0.047 4 | 0.003 6 | 0.035 5 | 0.002 7 | 0.005 4 | 0.000 1 | 35.0 | 0.8 |
SZ2-20 | 61.9 | 816.5 | 0.08 | 0.060 5 | 0.004 1 | 0.047 8 | 0.003 2 | 0.005 7 | 0.000 1 | 36.9 | 0.9 |
LBS1-1 | 109.4 | 347.8 | 0.32 | 0.033 1 | 0.005 4 | 0.023 5 | 0.003 8 | 0.005 2 | 0.000 2 | 33.1 | 1.0 |
LBS1-2* | 295.1 | 471.6 | 0.64 | 0.049 3 | 0.001 4 | 0.276 0 | 0.008 3 | 0.040 6 | 0.000 8 | 256.3 | 5.1 |
LBS1-3* | 42.0 | 344.6 | 0.12 | 0.047 8 | 0.002 1 | 0.266 6 | 0.012 1 | 0.040 4 | 0.000 9 | 255.6 | 5.4 |
LBS1-4* | 141.0 | 306.7 | 0.47 | 0.058 8 | 0.001 3 | 0.695 7 | 0.016 9 | 0.085 7 | 0.001 7 | 530.3 | 10.2 |
LBS1-5 | 97.1 | 287.8 | 0.35 | 0.039 6 | 0.006 0 | 0.029 0 | 0.004 3 | 0.005 3 | 0.000 2 | 34.2 | 1.0 |
LBS1-6* | 107.9 | 327.4 | 0.34 | 0.065 2 | 0.009 7 | 0.050 3 | 0.007 3 | 0.005 6 | 0.000 2 | 36.0 | 1.3 |
LBS1-7* | 21.4 | 345.1 | 0.06 | 0.051 9 | 0.001 7 | 0.282 7 | 0.009 7 | 0.039 5 | 0.000 8 | 249.7 | 5.0 |
LBS1-8 | 282.4 | 885.9 | 0.33 | 0.050 2 | 0.003 2 | 0.037 5 | 0.002 4 | 0.005 4 | 0.000 1 | 34.8 | 0.8 |
LBS1-9 | 156.6 | 371.1 | 0.43 | 0.048 1 | 0.004 8 | 0.036 3 | 0.003 6 | 0.005 5 | 0.000 1 | 35.2 | 0.9 |
LBS1-10 | 255.9 | 481.7 | 0.54 | 0.051 2 | 0.005 1 | 0.038 7 | 0.003 8 | 0.005 5 | 0.000 2 | 35.2 | 0.9 |
LBS1-11* | 68.6 | 473.7 | 0.15 | 0.066 0 | 0.001 5 | 0.778 6 | 0.019 9 | 0.085 6 | 0.001 7 | 529.2 | 10.3 |
LBS1-12 | 151.7 | 354.3 | 0.44 | 0.052 8 | 0.005 3 | 0.038 9 | 0.003 9 | 0.005 4 | 0.000 2 | 34.4 | 1.0 |
LBS1-13 | 208.9 | 624.4 | 0.34 | 0.061 8 | 0.003 8 | 0.045 4 | 0.002 8 | 0.005 3 | 0.000 1 | 34.2 | 0.8 |
LBS1-14* | 173.0 | 561.5 | 0.32 | 0.047 2 | 0.004 5 | 0.034 5 | 0.003 2 | 0.005 3 | 0.000 1 | 34.1 | 0.9 |
LBS1-15* | 229.6 | 488.7 | 0.48 | 0.050 2 | 0.001 8 | 0.280 2 | 0.010 2 | 0.040 5 | 0.000 9 | 255.7 | 5.3 |
LBS1-16 | 511.8 | 763.4 | 0.69 | 0.051 9 | 0.003 0 | 0.040 6 | 0.002 4 | 0.005 7 | 0.000 1 | 36.5 | 0.8 |
LBS1-17 | 220.9 | 814.1 | 0.28 | 0.049 1 | 0.002 9 | 0.037 0 | 0.002 2 | 0.005 5 | 0.000 1 | 35.1 | 0.8 |
LBS1-18* | 321.6 | 631.7 | 0.52 | 0.044 6 | 0.002 9 | 0.032 6 | 0.002 1 | 0.005 3 | 0.000 1 | 34.1 | 0.8 |
LBS1-19* | 174.4 | 463.8 | 0.39 | 0.099 5 | 0.007 6 | 0.081 3 | 0.006 1 | 0.005 9 | 0.000 2 | 38.1 | 1.1 |
LBS1-20* | 183.5 | 428.6 | 0.44 | 0.065 2 | 0.005 8 | 0.047 7 | 0.004 2 | 0.005 3 | 0.000 2 | 34.1 | 0.9 |
WLP2-1* | 70.8 | 158.6 | 0.46 | 0.060 0 | 0.001 9 | 0.585 3 | 0.016 4 | 0.070 7 | 0.000 7 | 440.1 | 4.1 |
WLP2-2 | 337.5 | 293.0 | 1.18 | 0.059 2 | 0.007 5 | 0.046 8 | 0.005 9 | 0.005 7 | 0.000 1 | 36.8 | 0.6 |
WLP2-3* | 61.1 | 419.2 | 0.15 | 0.067 0 | 0.001 4 | 1.182 2 | 0.017 3 | 0.127 9 | 0.001 0 | 775.7 | 5.5 |
WLP2-4* | 132.6 | 482.7 | 0.28 | 0.072 5 | 0.001 9 | 1.209 6 | 0.026 4 | 0.120 9 | 0.001 1 | 735.8 | 6.5 |
WLP2-5* | 145.3 | 147.4 | 1.01 | 0.054 0 | 0.008 2 | 0.047 1 | 0.007 0 | 0.006 3 | 0.000 2 | 40.7 | 1.0 |
WLP2-6* | 707.1 | 1 133.3 | 0.64 | 0.073 0 | 0.004 4 | 0.056 4 | 0.003 2 | 0.005 6 | 0.000 1 | 36.0 | 0.6 |
WLP2-7* | 107.5 | 344.0 | 0.32 | 0.089 9 | 0.001 7 | 2.059 8 | 0.025 3 | 0.166 0 | 0.001 2 | 990.3 | 6.9 |
WLP2-8 | 300.4 | 342.0 | 0.90 | 0.093 6 | 0.006 1 | 0.073 1 | 0.004 6 | 0.005 7 | 0.000 1 | 36.4 | 0.6 |
WLP2-9 | 413.4 | 475.0 | 0.89 | 0.077 6 | 0.004 2 | 0.060 6 | 0.003 1 | 0.005 7 | 0.000 1 | 36.4 | 0.5 |
WLP2-10* | 90.4 | 259.5 | 0.36 | 0.066 2 | 0.001 6 | 1.164 1 | 0.023 0 | 0.127 5 | 0.001 1 | 773.5 | 6.3 |
WLP2-11* | 6 196.6 | 3 487.8 | 1.82 | 0.060 8 | 0.002 4 | 0.045 2 | 0.001 6 | 0.005 4 | 0.000 1 | 34.7 | 0.4 |
WLP2-12* | 131.0 | 519.4 | 0.26 | 0.068 9 | 0.001 3 | 1.215 0 | 0.014 6 | 0.127 8 | 0.000 9 | 775.5 | 5.2 |
WLP2-13* | 87.4 | 285.8 | 0.31 | 0.067 1 | 0.001 3 | 1.181 4 | 0.017 3 | 0.127 6 | 0.001 0 | 774.2 | 5.6 |
WLP2-14 | 352.9 | 322.4 | 1.12 | 0.080 5 | 0.008 9 | 0.066 8 | 0.007 1 | 0.006 0 | 0.000 2 | 38.7 | 1.1 |
WLP2-15* | 151.4 | 451.2 | 0.34 | 0.083 3 | 0.001 6 | 1.910 1 | 0.024 5 | 0.166 3 | 0.001 3 | 991.4 | 7.0 |
WLP2-16 | 281.0 | 217.2 | 1.33 | 0.117 0 | 0.009 6 | 0.088 9 | 0.006 9 | 0.005 5 | 0.000 1 | 35.4 | 0.8 |
WLP2-17 | 75.4 | 111.4 | 0.69 | 0.089 9 | 0.011 1 | 0.072 0 | 0.008 7 | 0.005 8 | 0.000 2 | 37.3 | 0.9 |
WLP2-18* | 34.5 | 212.1 | 0.17 | 0.079 3 | 0.002 1 | 1.814 7 | 0.041 0 | 0.166 2 | 0.001 7 | 990.9 | 9.3 |
WLP2-19 | 1 201.1 | 645.4 | 1.91 | 0.121 2 | 0.006 1 | 0.096 0 | 0.004 4 | 0.005 8 | 0.000 1 | 36.9 | 0.6 |
WLP2-20* | 214.5 | 597.3 | 0.37 | 0.067 0 | 0.001 3 | 1.179 5 | 0.017 0 | 0.127 8 | 0.001 0 | 775.5 | 5.6 |
WLP2-21 | 494.3 | 384.9 | 1.32 | 0.052 5 | 0.003 9 | 0.041 5 | 0.003 0 | 0.005 7 | 0.000 1 | 36.9 | 0.6 |
LJS3-1 | 343.4 | 323.3 | 1.09 | 0.052 8 | 0.008 2 | 0.038 3 | 0.005 9 | 0.005 3 | 0.000 2 | 33.9 | 1.0 |
LJS3-2 | 940.5 | 1 054.6 | 0.91 | 0.052 2 | 0.003 0 | 0.037 9 | 0.002 2 | 0.005 3 | 0.000 1 | 33.9 | 0.7 |
LJS3-3 | 202.2 | 343.0 | 0.60 | 0.061 8 | 0.006 9 | 0.045 0 | 0.005 0 | 0.005 3 | 0.000 1 | 33.9 | 0.9 |
LJS3-4 | 594.1 | 614.2 | 0.99 | 0.052 5 | 0.005 0 | 0.038 1 | 0.003 6 | 0.005 3 | 0.000 1 | 33.9 | 0.8 |
LJS3-5 | 997.6 | 1 126.5 | 0.91 | 0.055 4 | 0.003 0 | 0.039 7 | 0.002 2 | 0.005 2 | 0.000 1 | 33.4 | 0.7 |
LJS3-6 | 195.5 | 333.7 | 0.60 | 0.074 9 | 0.007 8 | 0.054 1 | 0.005 6 | 0.005 2 | 0.000 1 | 33.7 | 0.9 |
LJS3-7 | 359.2 | 476.0 | 0.77 | 0.063 6 | 0.006 1 | 0.046 0 | 0.004 4 | 0.005 2 | 0.000 1 | 33.7 | 0.9 |
LJS3-8 | 187.4 | 302.7 | 0.64 | 0.043 3 | 0.007 6 | 0.031 5 | 0.005 5 | 0.005 3 | 0.000 2 | 33.9 | 0.9 |
LJS3-9 | 225.0 | 286.5 | 0.81 | 0.036 1 | 0.009 0 | 0.025 9 | 0.006 4 | 0.005 2 | 0.000 2 | 33.5 | 1.0 |
LJS3-10 | 373.9 | 480.1 | 0.80 | 0.050 6 | 0.006 4 | 0.037 1 | 0.004 6 | 0.005 3 | 0.000 2 | 34.1 | 0.9 |
LJS3-11 | 531.2 | 605.1 | 0.90 | 0.049 3 | 0.004 7 | 0.037 0 | 0.003 5 | 0.005 4 | 0.000 1 | 34.9 | 0.8 |
LJS3-12 | 268.9 | 378.4 | 0.73 | 0.055 7 | 0.008 6 | 0.041 2 | 0.006 3 | 0.005 4 | 0.000 2 | 34.5 | 1.1 |
LJS3-13 | 328.8 | 506.2 | 0.67 | 0.046 6 | 0.005 9 | 0.034 6 | 0.004 4 | 0.005 4 | 0.000 2 | 34.6 | 0.9 |
LJS3-14 | 111.6 | 150.4 | 0.76 | 0.067 5 | 0.017 8 | 0.048 5 | 0.012 7 | 0.005 2 | 0.000 2 | 33.5 | 1.4 |
LJS3-15 | 478.8 | 441.4 | 1.11 | 0.049 7 | 0.006 0 | 0.037 3 | 0.004 5 | 0.005 4 | 0.000 1 | 35.0 | 0.9 |
LJS3-16 | 348.6 | 442.5 | 0.81 | 0.060 2 | 0.006 5 | 0.044 6 | 0.004 8 | 0.005 4 | 0.000 1 | 34.5 | 0.9 |
LJS3-17 | 344.7 | 309.1 | 1.14 | 0.045 0 | 0.009 0 | 0.033 3 | 0.006 7 | 0.005 4 | 0.000 2 | 34.5 | 1.0 |
LJS3-18 | 255.3 | 481.9 | 0.54 | 0.062 6 | 0.004 9 | 0.048 0 | 0.003 8 | 0.005 6 | 0.000 1 | 35.8 | 0.9 |
LJS3-19 | 186.0 | 362.2 | 0.53 | 0.055 9 | 0.008 8 | 0.041 8 | 0.006 5 | 0.005 4 | 0.000 2 | 34.9 | 1.1 |
LJS3-20 | 348.5 | 480.6 | 0.74 | 0.040 0 | 0.006 9 | 0.030 6 | 0.005 3 | 0.005 6 | 0.000 2 | 35.7 | 1.0 |
Table 2 LA-ICP-MS U-Pb dating of zircons in alkali-rich porphyry
分析点 | Th/10-6 | U/10-6 | Th/U | 同位素比值 | 同位素年龄/Ma | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
207Pb/206Pb | 1σ | 207Pb/235U | 1σ | 206Pb/238U | 1σ | 206Pb/238U | 1σ | ||||
SZ2-1* | 85.1 | 351.1 | 0.25 | 0.157 2 | 0.002 9 | 8.495 9 | 0.189 6 | 0.391 6 | 0.008 3 | 2 130.3 | 38.4 |
SZ2-2 | 79.0 | 849.6 | 0.10 | 0.067 8 | 0.004 1 | 0.054 1 | 0.003 3 | 0.005 8 | 0.000 1 | 37.2 | 0.9 |
SZ2-3 | 133.0 | 879.9 | 0.16 | 0.076 8 | 0.004 2 | 0.059 6 | 0.003 2 | 0.005 6 | 0.000 1 | 36.1 | 0.9 |
SZ2-4 | 56.0 | 419.3 | 0.14 | 0.107 1 | 0.008 2 | 0.086 2 | 0.006 4 | 0.005 8 | 0.000 2 | 37.5 | 1.1 |
SZ2-5* | 138.8 | 702.7 | 0.20 | 0.048 7 | 0.002 1 | 0.244 1 | 0.010 5 | 0.036 3 | 0.000 8 | 229.9 | 5.0 |
SZ2-6 | 95.1 | 547.0 | 0.18 | 0.074 9 | 0.006 1 | 0.061 0 | 0.004 9 | 0.005 9 | 0.000 2 | 38.0 | 1.1 |
SZ2-7* | 126.7 | 425.7 | 0.31 | 0.049 0 | 0.002 5 | 0.242 1 | 0.012 7 | 0.035 8 | 0.000 8 | 226.9 | 5.1 |
SZ2-8 | 143.1 | 979.3 | 0.15 | 0.044 0 | 0.004 2 | 0.033 2 | 0.003 1 | 0.005 5 | 0.000 1 | 35.2 | 0.9 |
SZ2-9 | 13.8 | 630.7 | 0.02 | 0.055 1 | 0.004 4 | 0.042 0 | 0.003 3 | 0.005 5 | 0.000 1 | 35.5 | 0.9 |
SZ2-10 | 78.1 | 665.9 | 0.12 | 0.073 8 | 0.005 9 | 0.054 5 | 0.004 3 | 0.005 4 | 0.000 2 | 34.4 | 0.9 |
SZ2-11 | 59.2 | 739.9 | 0.08 | 0.054 3 | 0.004 2 | 0.041 2 | 0.003 2 | 0.005 5 | 0.000 1 | 35.4 | 0.9 |
SZ2-12 | 75.3 | 951.1 | 0.08 | 0.043 9 | 0.003 4 | 0.034 2 | 0.002 7 | 0.005 7 | 0.000 1 | 36.3 | 0.9 |
SZ2-13 | 262.4 | 635.2 | 0.42 | 0.048 2 | 0.005 0 | 0.036 5 | 0.003 8 | 0.005 5 | 0.000 1 | 35.3 | 0.9 |
SZ2-14 | 204.1 | 1 041.1 | 0.20 | 0.047 0 | 0.004 7 | 0.035 3 | 0.003 5 | 0.005 5 | 0.000 1 | 35.1 | 0.9 |
SZ2-15* | 92.8 | 602.9 | 0.16 | 0.070 2 | 0.006 8 | 0.052 0 | 0.004 9 | 0.005 4 | 0.000 2 | 34.5 | 1.0 |
SZ2-16* | 95.7 | 766.7 | 0.13 | 0.055 4 | 0.006 6 | 0.043 7 | 0.005 1 | 0.005 7 | 0.000 2 | 36.8 | 1.1 |
SZ2-17* | 78.5 | 680.8 | 0.12 | 0.056 0 | 0.004 7 | 0.042 9 | 0.003 6 | 0.005 6 | 0.000 1 | 35.8 | 0.9 |
SZ2-18* | 142.1 | 482.9 | 0.30 | 0.086 1 | 0.008 1 | 0.067 8 | 0.006 2 | 0.005 7 | 0.000 2 | 36.8 | 1.2 |
SZ2-19 | 45.0 | 656.6 | 0.07 | 0.047 4 | 0.003 6 | 0.035 5 | 0.002 7 | 0.005 4 | 0.000 1 | 35.0 | 0.8 |
SZ2-20 | 61.9 | 816.5 | 0.08 | 0.060 5 | 0.004 1 | 0.047 8 | 0.003 2 | 0.005 7 | 0.000 1 | 36.9 | 0.9 |
LBS1-1 | 109.4 | 347.8 | 0.32 | 0.033 1 | 0.005 4 | 0.023 5 | 0.003 8 | 0.005 2 | 0.000 2 | 33.1 | 1.0 |
LBS1-2* | 295.1 | 471.6 | 0.64 | 0.049 3 | 0.001 4 | 0.276 0 | 0.008 3 | 0.040 6 | 0.000 8 | 256.3 | 5.1 |
LBS1-3* | 42.0 | 344.6 | 0.12 | 0.047 8 | 0.002 1 | 0.266 6 | 0.012 1 | 0.040 4 | 0.000 9 | 255.6 | 5.4 |
LBS1-4* | 141.0 | 306.7 | 0.47 | 0.058 8 | 0.001 3 | 0.695 7 | 0.016 9 | 0.085 7 | 0.001 7 | 530.3 | 10.2 |
LBS1-5 | 97.1 | 287.8 | 0.35 | 0.039 6 | 0.006 0 | 0.029 0 | 0.004 3 | 0.005 3 | 0.000 2 | 34.2 | 1.0 |
LBS1-6* | 107.9 | 327.4 | 0.34 | 0.065 2 | 0.009 7 | 0.050 3 | 0.007 3 | 0.005 6 | 0.000 2 | 36.0 | 1.3 |
LBS1-7* | 21.4 | 345.1 | 0.06 | 0.051 9 | 0.001 7 | 0.282 7 | 0.009 7 | 0.039 5 | 0.000 8 | 249.7 | 5.0 |
LBS1-8 | 282.4 | 885.9 | 0.33 | 0.050 2 | 0.003 2 | 0.037 5 | 0.002 4 | 0.005 4 | 0.000 1 | 34.8 | 0.8 |
LBS1-9 | 156.6 | 371.1 | 0.43 | 0.048 1 | 0.004 8 | 0.036 3 | 0.003 6 | 0.005 5 | 0.000 1 | 35.2 | 0.9 |
LBS1-10 | 255.9 | 481.7 | 0.54 | 0.051 2 | 0.005 1 | 0.038 7 | 0.003 8 | 0.005 5 | 0.000 2 | 35.2 | 0.9 |
LBS1-11* | 68.6 | 473.7 | 0.15 | 0.066 0 | 0.001 5 | 0.778 6 | 0.019 9 | 0.085 6 | 0.001 7 | 529.2 | 10.3 |
LBS1-12 | 151.7 | 354.3 | 0.44 | 0.052 8 | 0.005 3 | 0.038 9 | 0.003 9 | 0.005 4 | 0.000 2 | 34.4 | 1.0 |
LBS1-13 | 208.9 | 624.4 | 0.34 | 0.061 8 | 0.003 8 | 0.045 4 | 0.002 8 | 0.005 3 | 0.000 1 | 34.2 | 0.8 |
LBS1-14* | 173.0 | 561.5 | 0.32 | 0.047 2 | 0.004 5 | 0.034 5 | 0.003 2 | 0.005 3 | 0.000 1 | 34.1 | 0.9 |
LBS1-15* | 229.6 | 488.7 | 0.48 | 0.050 2 | 0.001 8 | 0.280 2 | 0.010 2 | 0.040 5 | 0.000 9 | 255.7 | 5.3 |
LBS1-16 | 511.8 | 763.4 | 0.69 | 0.051 9 | 0.003 0 | 0.040 6 | 0.002 4 | 0.005 7 | 0.000 1 | 36.5 | 0.8 |
LBS1-17 | 220.9 | 814.1 | 0.28 | 0.049 1 | 0.002 9 | 0.037 0 | 0.002 2 | 0.005 5 | 0.000 1 | 35.1 | 0.8 |
LBS1-18* | 321.6 | 631.7 | 0.52 | 0.044 6 | 0.002 9 | 0.032 6 | 0.002 1 | 0.005 3 | 0.000 1 | 34.1 | 0.8 |
LBS1-19* | 174.4 | 463.8 | 0.39 | 0.099 5 | 0.007 6 | 0.081 3 | 0.006 1 | 0.005 9 | 0.000 2 | 38.1 | 1.1 |
LBS1-20* | 183.5 | 428.6 | 0.44 | 0.065 2 | 0.005 8 | 0.047 7 | 0.004 2 | 0.005 3 | 0.000 2 | 34.1 | 0.9 |
WLP2-1* | 70.8 | 158.6 | 0.46 | 0.060 0 | 0.001 9 | 0.585 3 | 0.016 4 | 0.070 7 | 0.000 7 | 440.1 | 4.1 |
WLP2-2 | 337.5 | 293.0 | 1.18 | 0.059 2 | 0.007 5 | 0.046 8 | 0.005 9 | 0.005 7 | 0.000 1 | 36.8 | 0.6 |
WLP2-3* | 61.1 | 419.2 | 0.15 | 0.067 0 | 0.001 4 | 1.182 2 | 0.017 3 | 0.127 9 | 0.001 0 | 775.7 | 5.5 |
WLP2-4* | 132.6 | 482.7 | 0.28 | 0.072 5 | 0.001 9 | 1.209 6 | 0.026 4 | 0.120 9 | 0.001 1 | 735.8 | 6.5 |
WLP2-5* | 145.3 | 147.4 | 1.01 | 0.054 0 | 0.008 2 | 0.047 1 | 0.007 0 | 0.006 3 | 0.000 2 | 40.7 | 1.0 |
WLP2-6* | 707.1 | 1 133.3 | 0.64 | 0.073 0 | 0.004 4 | 0.056 4 | 0.003 2 | 0.005 6 | 0.000 1 | 36.0 | 0.6 |
WLP2-7* | 107.5 | 344.0 | 0.32 | 0.089 9 | 0.001 7 | 2.059 8 | 0.025 3 | 0.166 0 | 0.001 2 | 990.3 | 6.9 |
WLP2-8 | 300.4 | 342.0 | 0.90 | 0.093 6 | 0.006 1 | 0.073 1 | 0.004 6 | 0.005 7 | 0.000 1 | 36.4 | 0.6 |
WLP2-9 | 413.4 | 475.0 | 0.89 | 0.077 6 | 0.004 2 | 0.060 6 | 0.003 1 | 0.005 7 | 0.000 1 | 36.4 | 0.5 |
WLP2-10* | 90.4 | 259.5 | 0.36 | 0.066 2 | 0.001 6 | 1.164 1 | 0.023 0 | 0.127 5 | 0.001 1 | 773.5 | 6.3 |
WLP2-11* | 6 196.6 | 3 487.8 | 1.82 | 0.060 8 | 0.002 4 | 0.045 2 | 0.001 6 | 0.005 4 | 0.000 1 | 34.7 | 0.4 |
WLP2-12* | 131.0 | 519.4 | 0.26 | 0.068 9 | 0.001 3 | 1.215 0 | 0.014 6 | 0.127 8 | 0.000 9 | 775.5 | 5.2 |
WLP2-13* | 87.4 | 285.8 | 0.31 | 0.067 1 | 0.001 3 | 1.181 4 | 0.017 3 | 0.127 6 | 0.001 0 | 774.2 | 5.6 |
WLP2-14 | 352.9 | 322.4 | 1.12 | 0.080 5 | 0.008 9 | 0.066 8 | 0.007 1 | 0.006 0 | 0.000 2 | 38.7 | 1.1 |
WLP2-15* | 151.4 | 451.2 | 0.34 | 0.083 3 | 0.001 6 | 1.910 1 | 0.024 5 | 0.166 3 | 0.001 3 | 991.4 | 7.0 |
WLP2-16 | 281.0 | 217.2 | 1.33 | 0.117 0 | 0.009 6 | 0.088 9 | 0.006 9 | 0.005 5 | 0.000 1 | 35.4 | 0.8 |
WLP2-17 | 75.4 | 111.4 | 0.69 | 0.089 9 | 0.011 1 | 0.072 0 | 0.008 7 | 0.005 8 | 0.000 2 | 37.3 | 0.9 |
WLP2-18* | 34.5 | 212.1 | 0.17 | 0.079 3 | 0.002 1 | 1.814 7 | 0.041 0 | 0.166 2 | 0.001 7 | 990.9 | 9.3 |
WLP2-19 | 1 201.1 | 645.4 | 1.91 | 0.121 2 | 0.006 1 | 0.096 0 | 0.004 4 | 0.005 8 | 0.000 1 | 36.9 | 0.6 |
WLP2-20* | 214.5 | 597.3 | 0.37 | 0.067 0 | 0.001 3 | 1.179 5 | 0.017 0 | 0.127 8 | 0.001 0 | 775.5 | 5.6 |
WLP2-21 | 494.3 | 384.9 | 1.32 | 0.052 5 | 0.003 9 | 0.041 5 | 0.003 0 | 0.005 7 | 0.000 1 | 36.9 | 0.6 |
LJS3-1 | 343.4 | 323.3 | 1.09 | 0.052 8 | 0.008 2 | 0.038 3 | 0.005 9 | 0.005 3 | 0.000 2 | 33.9 | 1.0 |
LJS3-2 | 940.5 | 1 054.6 | 0.91 | 0.052 2 | 0.003 0 | 0.037 9 | 0.002 2 | 0.005 3 | 0.000 1 | 33.9 | 0.7 |
LJS3-3 | 202.2 | 343.0 | 0.60 | 0.061 8 | 0.006 9 | 0.045 0 | 0.005 0 | 0.005 3 | 0.000 1 | 33.9 | 0.9 |
LJS3-4 | 594.1 | 614.2 | 0.99 | 0.052 5 | 0.005 0 | 0.038 1 | 0.003 6 | 0.005 3 | 0.000 1 | 33.9 | 0.8 |
LJS3-5 | 997.6 | 1 126.5 | 0.91 | 0.055 4 | 0.003 0 | 0.039 7 | 0.002 2 | 0.005 2 | 0.000 1 | 33.4 | 0.7 |
LJS3-6 | 195.5 | 333.7 | 0.60 | 0.074 9 | 0.007 8 | 0.054 1 | 0.005 6 | 0.005 2 | 0.000 1 | 33.7 | 0.9 |
LJS3-7 | 359.2 | 476.0 | 0.77 | 0.063 6 | 0.006 1 | 0.046 0 | 0.004 4 | 0.005 2 | 0.000 1 | 33.7 | 0.9 |
LJS3-8 | 187.4 | 302.7 | 0.64 | 0.043 3 | 0.007 6 | 0.031 5 | 0.005 5 | 0.005 3 | 0.000 2 | 33.9 | 0.9 |
LJS3-9 | 225.0 | 286.5 | 0.81 | 0.036 1 | 0.009 0 | 0.025 9 | 0.006 4 | 0.005 2 | 0.000 2 | 33.5 | 1.0 |
LJS3-10 | 373.9 | 480.1 | 0.80 | 0.050 6 | 0.006 4 | 0.037 1 | 0.004 6 | 0.005 3 | 0.000 2 | 34.1 | 0.9 |
LJS3-11 | 531.2 | 605.1 | 0.90 | 0.049 3 | 0.004 7 | 0.037 0 | 0.003 5 | 0.005 4 | 0.000 1 | 34.9 | 0.8 |
LJS3-12 | 268.9 | 378.4 | 0.73 | 0.055 7 | 0.008 6 | 0.041 2 | 0.006 3 | 0.005 4 | 0.000 2 | 34.5 | 1.1 |
LJS3-13 | 328.8 | 506.2 | 0.67 | 0.046 6 | 0.005 9 | 0.034 6 | 0.004 4 | 0.005 4 | 0.000 2 | 34.6 | 0.9 |
LJS3-14 | 111.6 | 150.4 | 0.76 | 0.067 5 | 0.017 8 | 0.048 5 | 0.012 7 | 0.005 2 | 0.000 2 | 33.5 | 1.4 |
LJS3-15 | 478.8 | 441.4 | 1.11 | 0.049 7 | 0.006 0 | 0.037 3 | 0.004 5 | 0.005 4 | 0.000 1 | 35.0 | 0.9 |
LJS3-16 | 348.6 | 442.5 | 0.81 | 0.060 2 | 0.006 5 | 0.044 6 | 0.004 8 | 0.005 4 | 0.000 1 | 34.5 | 0.9 |
LJS3-17 | 344.7 | 309.1 | 1.14 | 0.045 0 | 0.009 0 | 0.033 3 | 0.006 7 | 0.005 4 | 0.000 2 | 34.5 | 1.0 |
LJS3-18 | 255.3 | 481.9 | 0.54 | 0.062 6 | 0.004 9 | 0.048 0 | 0.003 8 | 0.005 6 | 0.000 1 | 35.8 | 0.9 |
LJS3-19 | 186.0 | 362.2 | 0.53 | 0.055 9 | 0.008 8 | 0.041 8 | 0.006 5 | 0.005 4 | 0.000 2 | 34.9 | 1.1 |
LJS3-20 | 348.5 | 480.6 | 0.74 | 0.040 0 | 0.006 9 | 0.030 6 | 0.005 3 | 0.005 6 | 0.000 2 | 35.7 | 1.0 |
样号 | 岩体 | Rb | Ba | Th | U | K | Ta | Nb | Pb | Sr | P | Zr | Hf | Ti | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
XQT1 | 小桥头 | 116.3 | 1 497 | 30.58 | 9.84 | 28 307 | 0.59 | 5.99 | 7.79 | 358 | 654 | 154.3 | 7.77 | 2 158 | |||||||
XQT2 | 132.5 | 1 635 | 62.63 | 10.68 | 31 545 | 0.74 | 7.85 | 11.40 | 819 | 698 | 158.2 | 6.75 | 2 278 | ||||||||
SZ1 | 石支 | 126.4 | 1 423 | 8.58 | 2.60 | 31 711 | 0.64 | 7.07 | 44.61 | 1 319 | 567 | 137.3 | 8.32 | 1 558 | |||||||
SZ2 | 121.5 | 1 519 | 8.54 | 3.22 | 32 458 | 0.58 | 6.86 | 61.12 | 1 261 | 567 | 137.1 | 8.46 | 1 678 | ||||||||
LJS1 | 老君山 | 215.8 | 1 832 | 20.78 | 5.61 | 55 204 | 1.16 | 13.49 | 30.60 | 1 301 | 1 658 | 232.4 | 15.15 | 3 297 | |||||||
LJS2 | 184.5 | 2 276 | 31.21 | 9.63 | 56 615 | 1.60 | 19.61 | 36.68 | 1 716 | 2 531 | 287.9 | 12.82 | 4 256 | ||||||||
LJS3 | 165.6 | 2 527 | 16.36 | 4.69 | 53 377 | 1.01 | 13.23 | 41.20 | 1 975 | 1 876 | 212.2 | 11.25 | 3 956 | ||||||||
LBS1 | 喇叭山 | 81.0 | 2 990 | 17.46 | 6.38 | 46 321 | 0.57 | 8.35 | 59.77 | 1 797 | 2 575 | 229.3 | 6.85 | 4 856 | |||||||
LBS2 | 99.9 | 1 317 | 8.24 | 2.40 | 30 715 | 0.71 | 9.75 | 33.79 | 1 119 | 872 | 198.6 | 6.39 | 2 817 | ||||||||
LBS3 | 176.9 | 2 366 | 42.65 | 10.19 | 57 943 | 1.69 | 23.45 | 99.17 | 1 522 | 2 618 | 446.1 | 11.77 | 4 556 | ||||||||
WLP1 | 温路坡 | 198.1 | 2 021 | 32.26 | 11.12 | 54 955 | 1.05 | 16.42 | 85.83 | 728 | 2 837 | 307.1 | 8.26 | 4 076 | |||||||
WLP2 | 205.2 | 2 036 | 43.46 | 13.74 | 55 702 | 1.72 | 23.00 | 131.50 | 891 | 2 749 | 313.8 | 8.23 | 4 196 | ||||||||
17H1 | 274.7 | 2 044 | 45.05 | 14.91 | 59 769 | 2.57 | 30.82 | 191.89 | 948 | 4 027 | 583.7 | 12.88 | 6 034 | ||||||||
17H2 | 275.0 | 2 697 | 44.19 | 11.26 | 68 376 | 2.32 | 27.59 | 214.24 | 1 374 | 3 931 | 425.9 | 10.96 | 5 525 | ||||||||
样号 | 岩体 | La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | |||||||
XQT1 | 小桥头 | 23.15 | 46.8 | 5.51 | 22.09 | 4.28 | 1.11 | 3.39 | 0.45 | 2.40 | 0.40 | 1.11 | 0.16 | 1.12 | |||||||
XQT2 | 23.67 | 47.6 | 5.45 | 21.30 | 4.16 | 1.08 | 3.34 | 0.48 | 2.48 | 0.46 | 1.27 | 0.19 | 1.19 | ||||||||
SZ1 | 石支 | 19.21 | 38.6 | 4.88 | 19.02 | 3.60 | 1.26 | 2.83 | 0.37 | 1.73 | 0.29 | 0.77 | 0.12 | 0.70 | |||||||
SZ2 | 18.79 | 37.9 | 4.90 | 19.60 | 3.63 | 1.13 | 2.78 | 0.37 | 1.78 | 0.31 | 0.79 | 0.12 | 0.73 | ||||||||
LJS1 | 老君山 | 44.95 | 91.2 | 11.67 | 47.56 | 9.17 | 2.10 | 7.91 | 1.11 | 5.86 | 1.04 | 2.81 | 0.46 | 2.82 | |||||||
LJS2 | 49.78 | 106.6 | 13.82 | 55.13 | 10.73 | 2.72 | 9.18 | 1.31 | 6.77 | 1.26 | 3.31 | 0.56 | 3.37 | ||||||||
LJS3 | 39.55 | 85.3 | 11.33 | 45.49 | 8.80 | 2.47 | 7.37 | 1.05 | 5.52 | 1.01 | 2.73 | 0.46 | 2.80 | ||||||||
LBS1 | 喇叭山 | 36.50 | 84.5 | 11.93 | 51.56 | 10.65 | 3.02 | 9.20 | 1.27 | 6.58 | 1.18 | 3.10 | 0.50 | 2.94 | |||||||
LBS2 | 35.83 | 59.9 | 8.77 | 35.03 | 6.15 | 1.86 | 4.76 | 0.66 | 3.07 | 0.52 | 1.30 | 0.20 | 1.22 | ||||||||
LBS3 | 96.36 | 122.2 | 25.01 | 100.03 | 17.57 | 4.20 | 13.20 | 1.84 | 9.17 | 1.58 | 4.20 | 0.69 | 4.24 | ||||||||
WLP1 | 温路坡 | 43.72 | 92.3 | 11.63 | 47.00 | 8.85 | 2.30 | 7.36 | 1.06 | 5.54 | 1.04 | 2.82 | 0.48 | 2.92 | |||||||
WLP2 | 49.61 | 94.4 | 13.19 | 54.72 | 10.43 | 2.72 | 9.33 | 1.27 | 6.86 | 1.28 | 3.43 | 0.57 | 3.47 | ||||||||
17H1 | 57.55 | 120.5 | 15.75 | 58.00 | 11.86 | 2.75 | 9.91 | 1.40 | 7.16 | 1.27 | 3.35 | 0.52 | 3.31 | ||||||||
17H2 | 57.38 | 119.5 | 15.47 | 57.47 | 11.37 | 2.74 | 9.50 | 1.36 | 6.83 | 1.23 | 3.25 | 0.51 | 3.23 | ||||||||
样号 | 岩体 | Lu | Y | ∑REE | LREE/HREE | (La/Yb)N | (La/Sm)N | δEu | δCe | ||||||||||||
XQT1 | 小桥头 | 0.15 | 11.11 | 112.12 | 11.22 | 14.80 | 3.49 | 0.86 | 0.98 | ||||||||||||
XQT2 | 0.17 | 12.91 | 112.81 | 10.80 | 14.29 | 3.68 | 0.85 | 0.99 | |||||||||||||
SZ1 | 石支 | 0.10 | 7.80 | 93.50 | 12.51 | 19.60 | 3.44 | 1.16 | 0.95 | ||||||||||||
SZ2 | 0.10 | 7.96 | 92.99 | 12.32 | 18.59 | 3.34 | 1.05 | 0.95 | |||||||||||||
LJS1 | 老君山 | 0.39 | 27.03 | 229.07 | 9.23 | 11.42 | 3.17 | 0.74 | 0.95 | ||||||||||||
LJS2 | 0.49 | 31.43 | 265.02 | 9.10 | 10.59 | 3.00 | 0.82 | 0.98 | |||||||||||||
LJS3 | 0.40 | 25.23 | 214.29 | 9.05 | 10.12 | 2.90 | 0.91 | 0.97 | |||||||||||||
LBS1 | 喇叭山 | 0.47 | 30.27 | 223.38 | 7.85 | 8.91 | 2.21 | 0.91 | 0.99 | ||||||||||||
LBS2 | 0.18 | 13.62 | 159.43 | 12.38 | 21.00 | 3.76 | 1.01 | 0.80 | |||||||||||||
LBS3 | 0.65 | 40.99 | 400.93 | 10.27 | 16.29 | 3.54 | 0.81 | 0.60 | |||||||||||||
WLP1 | 温路坡 | 0.45 | 27.14 | 227.49 | 9.50 | 10.73 | 3.19 | 0.85 | 0.98 | ||||||||||||
WLP2 | 0.52 | 37.48 | 251.79 | 8.42 | 10.25 | 3.07 | 0.82 | 0.89 | |||||||||||||
17H1 | 0.52 | 36.41 | 293.86 | 9.71 | 12.46 | 3.13 | 0.75 | 0.96 | |||||||||||||
17H2 | 0.49 | 34.57 | 290.34 | 10.00 | 12.76 | 3.26 | 0.78 | 0.96 |
Table 4 Trace element concentrations(10-6) and related parameters for the alkali-rich porphyry in the study area
样号 | 岩体 | Rb | Ba | Th | U | K | Ta | Nb | Pb | Sr | P | Zr | Hf | Ti | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
XQT1 | 小桥头 | 116.3 | 1 497 | 30.58 | 9.84 | 28 307 | 0.59 | 5.99 | 7.79 | 358 | 654 | 154.3 | 7.77 | 2 158 | |||||||
XQT2 | 132.5 | 1 635 | 62.63 | 10.68 | 31 545 | 0.74 | 7.85 | 11.40 | 819 | 698 | 158.2 | 6.75 | 2 278 | ||||||||
SZ1 | 石支 | 126.4 | 1 423 | 8.58 | 2.60 | 31 711 | 0.64 | 7.07 | 44.61 | 1 319 | 567 | 137.3 | 8.32 | 1 558 | |||||||
SZ2 | 121.5 | 1 519 | 8.54 | 3.22 | 32 458 | 0.58 | 6.86 | 61.12 | 1 261 | 567 | 137.1 | 8.46 | 1 678 | ||||||||
LJS1 | 老君山 | 215.8 | 1 832 | 20.78 | 5.61 | 55 204 | 1.16 | 13.49 | 30.60 | 1 301 | 1 658 | 232.4 | 15.15 | 3 297 | |||||||
LJS2 | 184.5 | 2 276 | 31.21 | 9.63 | 56 615 | 1.60 | 19.61 | 36.68 | 1 716 | 2 531 | 287.9 | 12.82 | 4 256 | ||||||||
LJS3 | 165.6 | 2 527 | 16.36 | 4.69 | 53 377 | 1.01 | 13.23 | 41.20 | 1 975 | 1 876 | 212.2 | 11.25 | 3 956 | ||||||||
LBS1 | 喇叭山 | 81.0 | 2 990 | 17.46 | 6.38 | 46 321 | 0.57 | 8.35 | 59.77 | 1 797 | 2 575 | 229.3 | 6.85 | 4 856 | |||||||
LBS2 | 99.9 | 1 317 | 8.24 | 2.40 | 30 715 | 0.71 | 9.75 | 33.79 | 1 119 | 872 | 198.6 | 6.39 | 2 817 | ||||||||
LBS3 | 176.9 | 2 366 | 42.65 | 10.19 | 57 943 | 1.69 | 23.45 | 99.17 | 1 522 | 2 618 | 446.1 | 11.77 | 4 556 | ||||||||
WLP1 | 温路坡 | 198.1 | 2 021 | 32.26 | 11.12 | 54 955 | 1.05 | 16.42 | 85.83 | 728 | 2 837 | 307.1 | 8.26 | 4 076 | |||||||
WLP2 | 205.2 | 2 036 | 43.46 | 13.74 | 55 702 | 1.72 | 23.00 | 131.50 | 891 | 2 749 | 313.8 | 8.23 | 4 196 | ||||||||
17H1 | 274.7 | 2 044 | 45.05 | 14.91 | 59 769 | 2.57 | 30.82 | 191.89 | 948 | 4 027 | 583.7 | 12.88 | 6 034 | ||||||||
17H2 | 275.0 | 2 697 | 44.19 | 11.26 | 68 376 | 2.32 | 27.59 | 214.24 | 1 374 | 3 931 | 425.9 | 10.96 | 5 525 | ||||||||
样号 | 岩体 | La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | |||||||
XQT1 | 小桥头 | 23.15 | 46.8 | 5.51 | 22.09 | 4.28 | 1.11 | 3.39 | 0.45 | 2.40 | 0.40 | 1.11 | 0.16 | 1.12 | |||||||
XQT2 | 23.67 | 47.6 | 5.45 | 21.30 | 4.16 | 1.08 | 3.34 | 0.48 | 2.48 | 0.46 | 1.27 | 0.19 | 1.19 | ||||||||
SZ1 | 石支 | 19.21 | 38.6 | 4.88 | 19.02 | 3.60 | 1.26 | 2.83 | 0.37 | 1.73 | 0.29 | 0.77 | 0.12 | 0.70 | |||||||
SZ2 | 18.79 | 37.9 | 4.90 | 19.60 | 3.63 | 1.13 | 2.78 | 0.37 | 1.78 | 0.31 | 0.79 | 0.12 | 0.73 | ||||||||
LJS1 | 老君山 | 44.95 | 91.2 | 11.67 | 47.56 | 9.17 | 2.10 | 7.91 | 1.11 | 5.86 | 1.04 | 2.81 | 0.46 | 2.82 | |||||||
LJS2 | 49.78 | 106.6 | 13.82 | 55.13 | 10.73 | 2.72 | 9.18 | 1.31 | 6.77 | 1.26 | 3.31 | 0.56 | 3.37 | ||||||||
LJS3 | 39.55 | 85.3 | 11.33 | 45.49 | 8.80 | 2.47 | 7.37 | 1.05 | 5.52 | 1.01 | 2.73 | 0.46 | 2.80 | ||||||||
LBS1 | 喇叭山 | 36.50 | 84.5 | 11.93 | 51.56 | 10.65 | 3.02 | 9.20 | 1.27 | 6.58 | 1.18 | 3.10 | 0.50 | 2.94 | |||||||
LBS2 | 35.83 | 59.9 | 8.77 | 35.03 | 6.15 | 1.86 | 4.76 | 0.66 | 3.07 | 0.52 | 1.30 | 0.20 | 1.22 | ||||||||
LBS3 | 96.36 | 122.2 | 25.01 | 100.03 | 17.57 | 4.20 | 13.20 | 1.84 | 9.17 | 1.58 | 4.20 | 0.69 | 4.24 | ||||||||
WLP1 | 温路坡 | 43.72 | 92.3 | 11.63 | 47.00 | 8.85 | 2.30 | 7.36 | 1.06 | 5.54 | 1.04 | 2.82 | 0.48 | 2.92 | |||||||
WLP2 | 49.61 | 94.4 | 13.19 | 54.72 | 10.43 | 2.72 | 9.33 | 1.27 | 6.86 | 1.28 | 3.43 | 0.57 | 3.47 | ||||||||
17H1 | 57.55 | 120.5 | 15.75 | 58.00 | 11.86 | 2.75 | 9.91 | 1.40 | 7.16 | 1.27 | 3.35 | 0.52 | 3.31 | ||||||||
17H2 | 57.38 | 119.5 | 15.47 | 57.47 | 11.37 | 2.74 | 9.50 | 1.36 | 6.83 | 1.23 | 3.25 | 0.51 | 3.23 | ||||||||
样号 | 岩体 | Lu | Y | ∑REE | LREE/HREE | (La/Yb)N | (La/Sm)N | δEu | δCe | ||||||||||||
XQT1 | 小桥头 | 0.15 | 11.11 | 112.12 | 11.22 | 14.80 | 3.49 | 0.86 | 0.98 | ||||||||||||
XQT2 | 0.17 | 12.91 | 112.81 | 10.80 | 14.29 | 3.68 | 0.85 | 0.99 | |||||||||||||
SZ1 | 石支 | 0.10 | 7.80 | 93.50 | 12.51 | 19.60 | 3.44 | 1.16 | 0.95 | ||||||||||||
SZ2 | 0.10 | 7.96 | 92.99 | 12.32 | 18.59 | 3.34 | 1.05 | 0.95 | |||||||||||||
LJS1 | 老君山 | 0.39 | 27.03 | 229.07 | 9.23 | 11.42 | 3.17 | 0.74 | 0.95 | ||||||||||||
LJS2 | 0.49 | 31.43 | 265.02 | 9.10 | 10.59 | 3.00 | 0.82 | 0.98 | |||||||||||||
LJS3 | 0.40 | 25.23 | 214.29 | 9.05 | 10.12 | 2.90 | 0.91 | 0.97 | |||||||||||||
LBS1 | 喇叭山 | 0.47 | 30.27 | 223.38 | 7.85 | 8.91 | 2.21 | 0.91 | 0.99 | ||||||||||||
LBS2 | 0.18 | 13.62 | 159.43 | 12.38 | 21.00 | 3.76 | 1.01 | 0.80 | |||||||||||||
LBS3 | 0.65 | 40.99 | 400.93 | 10.27 | 16.29 | 3.54 | 0.81 | 0.60 | |||||||||||||
WLP1 | 温路坡 | 0.45 | 27.14 | 227.49 | 9.50 | 10.73 | 3.19 | 0.85 | 0.98 | ||||||||||||
WLP2 | 0.52 | 37.48 | 251.79 | 8.42 | 10.25 | 3.07 | 0.82 | 0.89 | |||||||||||||
17H1 | 0.52 | 36.41 | 293.86 | 9.71 | 12.46 | 3.13 | 0.75 | 0.96 | |||||||||||||
17H2 | 0.49 | 34.57 | 290.34 | 10.00 | 12.76 | 3.26 | 0.78 | 0.96 |
岩体 | 年龄值/Ma | 分析方法 | 资料来源 |
---|---|---|---|
石支 | 35.9±0.5 | LA-ICPMS锆石U-Pb | 毛晓长等[ |
35.60±0.58 | LA-ICPMS锆石U-Pb | 本文 | |
老君山 | 34.8±1.6 | SHRIMP锆石U-Pb | 万哨凯等[ |
34.56±0.66 | LA-ICPMS锆石U-Pb | 本文 | |
小桥头 | 35.47±0.48 | LA-ICPMS锆石U-Pb | 另文发表 |
34.70±0.54 | LA-ICPMS锆石U-Pb | 另文发表 | |
喇叭山 | 34.74±0.70 | LA-ICPMS锆石U-Pb | 本文 |
桃花 | 36.35±0.35 | SHRIMP锆石U-Pb | 洪涛等[ |
温路坡 | 37.07±0.92 | LA-ICPMS锆石U-Pb | 本文 |
Table 5 Ages of the alkali-rich porphyry in the study area
岩体 | 年龄值/Ma | 分析方法 | 资料来源 |
---|---|---|---|
石支 | 35.9±0.5 | LA-ICPMS锆石U-Pb | 毛晓长等[ |
35.60±0.58 | LA-ICPMS锆石U-Pb | 本文 | |
老君山 | 34.8±1.6 | SHRIMP锆石U-Pb | 万哨凯等[ |
34.56±0.66 | LA-ICPMS锆石U-Pb | 本文 | |
小桥头 | 35.47±0.48 | LA-ICPMS锆石U-Pb | 另文发表 |
34.70±0.54 | LA-ICPMS锆石U-Pb | 另文发表 | |
喇叭山 | 34.74±0.70 | LA-ICPMS锆石U-Pb | 本文 |
桃花 | 36.35±0.35 | SHRIMP锆石U-Pb | 洪涛等[ |
温路坡 | 37.07±0.92 | LA-ICPMS锆石U-Pb | 本文 |
Fig. 8 Y vs.Sr/Y(a.base map after DEFANT et al.[54]) and (YbN vs.La/Yb)N(b.base map after DEFANT and DRUMMOND[57]) diagrams for the alkali-rich porphyry in the study area
Fig. 10 SiO2 vs. TiO2(a.base map after HUANG et al. [61]) and SiO2 vs. MgO(b.base map after WANG et al. [62]) diagrams for the alkali-rich porphyry in the study area
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